315 Riverside Dr, Lyons, CO 80540 Property Records

Boulder County property record for 315 Riverside Dr, Lyons, CO 80540 · Last verified June 2026

Property Summary

Property Type	Single Family Home
Details	2 bd · 1 ba · 814 sqft · built 1965
Lot Size	0.274 acres (11,945 sqft)
Owner	Individual Name on File
Last Sale	$112,000 (Jun 2011)
Tax Bill	$2,217 (2025)
Flood Zone	Zone AE (high risk)
APN	`1199-34-4-13-002`

Property Details

APN / Parcel Number

Primary APN	`1199-34-4-13-002`
Alternative APNs	`R0053529` `0053529`

Interior

Bedrooms	2 Beds
Full Baths	1 Bath
Total Rooms	4 Rooms
Stories	1 Story
Building Area	814 sqft Living Area
Gross Area	1,254 sqft
1st Floor Area	814 sqft
Basement Area	440 sqft
Interior Walls	Paneling

Exterior

Year Built	Built 1965
Effective Year Built	Effective 1965
Architectural Style	Ranch
Exterior Material	Wood Shingle
Construction Type	Frame
Lot Area	11,945 sqft (0.274 acres)
Porch	Porch
Porch Area	220 sqft
Deck Area	200 sqft

Utilities, Heating & Cooling

Heating System	Forced Air with A/C

Location & Zoning

Account Number	R0053529
Street Address	315 RIVERSIDE DR
City	LYONS
State	CO
Zip	80540
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	LOTS 4-5 & ELY 8 FT LOT 6 & TR 3973 BLK 1 RIVERSIDE O C HERDNER
Legal Range	72
Legal Township	3N
Legal Section	34
Legal Subdivision	RIVERSIDE O C HERDNER - MT
Legal Tract	3973
Legal Block	1
Legal Lot Number	4
Jurisdiction	BOULDER CO
Township / Civil Division	UPPER ST. VRAIN
Census Block Group	1
Census Block	1045
Census Tract	13602

Owner

Source: Boulder County records · APN 1199-34-4-13-002

Assessment roll updated June 15, 2026 · Last verified June 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	Individual Name on File
Mailing Address	13029 W OHIO AVE, LAKEWOOD, CO 80228-3105
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Jun 16, 2011 · Amount on Record
Deed Sale	Jun 16, 2011 · Amount on Record
Prior Sale	Nov 25, 1960
Deed Document Number	20113154092
Prior Transfer Date	Apr 07, 2010
Prior Transfer Doc	0003068898
Record Updated	Sep 20, 2026

Tax Assessment & Valuation

Source: Boulder County records · Assessment roll updated June 15, 2026 · Last verified June 2026

Property Jurisdictions

Type	Name
State	Colorado
County	Boulder County
Unified School District	St. Vrain Valley School District RE 1J (PK - 12)

Tax Bill & Assessment History

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Year	Tax Bill	Assessed Value	Assessed Market Value
2026		$24,575 (+8.8%) Land $2,570 Building $22,005	$361,400 (-) Land $37,800 Building $323,600
2025	$2,217.00 (+12.03%)	$22,588 (-13.06%) Land $2,363 Building $20,225	$361,400 (-6.81%) Land $37,800 Building $323,600
2024	$1,979.00 (+1.49%)
2023	$1,950.00 (+3.72%)	$25,982 (+27.16%) Land $2,204 Building $23,778	$387,800 (+31.9%) Land $32,900 Building $354,900
2022	$1,880.00	$20,433 Land $2,161 Building $18,272	$294,000 Land $31,100 Building $262,900

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Boulder County (08013C), updated October 14, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone AE
Flood Hazard	High
100-Year Floodplain	Yes 1% annual chance
Special Flood Hazard Area	Yes
Flood Insurance Requirement	Required (federally backed mortgages)
Floodway	Yes
Base Flood Elevation	Varies along the reach; see FIRM

Wildfire

Wildfire Risk	Extreme above 98% of the US · above 99% of Colorado
Wildfire Likelihood	About 1 in 57 per year
Exposure	Direct burnable vegetation at the parcel

Insurers in high-risk areas may require mitigation or decline coverage; check availability before making an offer.

Values are read at the parcel center point; lenders make the official flood determination.